Synchronous Motors Which of the following motors is non self starting? Squirrel cage induction motor Synchronous motor Wound rotor induction motor Dc series motor Squirrel cage induction motor Synchronous motor Wound rotor induction motor Dc series motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a 3-phase synchronous motor, the negative phase sequence exists when the motor is under-loaded supplied with unbalanced voltage None of these over-loaded under-loaded supplied with unbalanced voltage None of these over-loaded ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors For the same active power consumed, the stator current of a synchronous motor is ______ that of a 3 phase induction motor. None of the listed here The same as Less than More than None of the listed here The same as Less than More than ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A 50 Hz synchronous motor runs at 200 rpm. The number of salient poles on the rotor are______ 30 36 16 None of the listed here 30 36 16 None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An over excited synchronous motor behaves as _____ An inductor A resistor None of the listed here A capacitor An inductor A resistor None of the listed here A capacitor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor connected to infinite bus-bars has at constant full load, 100% excitation and unity power factor. On changing the excitation only, the armature current will have leading power factor with under-excitation no change of power factor lagging power factor with over-excitation leading power factor with over-excitation leading power factor with under-excitation no change of power factor lagging power factor with over-excitation leading power factor with over-excitation ANSWER DOWNLOAD EXAMIANS APP